1.
an invitation to sb to visit you at any time
2.
if sth is an open invitation to criminals, etc., it encourages them to commit a crime by making it easier :
Leaving your camera on the seat in the car is an open invitation to thieves.
1.
an invitation to sb to visit you at any time
2.
if sth is an open invitation to criminals, etc., it encourages them to commit a crime by making it easier :
Leaving your camera on the seat in the car is an open invitation to thieves.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005